The H.B. Difference


Ensuring Quality Each Step of the Way

Ensuring high-quality product is of the utmost importance to H.B. Carbide. Inspection and verification are built into our process from powder production through blank formation to final inspection.  This detail to quality has earned us ISO 9001:2015 certification.

Metallurgical Lab

We maintain a state-of-the art metallurgical lab that tests for the following characteristics:


Cobalt Content

Cobalt content has a direct impact on the physical properties of the carbide Hardness, Toughness and Strength (TRS).

At HB Carbide, we test cobalt content using ICP (OES) – Inductively Coupled Plasma (Optical Emission Spectroscopy). This is a wet chemistry process where the cobalt in our powders is dissolved into an acidic solution – the analyte is then tested for cobalt content.


Carbon Content

A carbon analyzer is used to monitor the carbon trends in our powders. For control and monitoring of carbon levels, we employ magnetic saturation measurement.



Each lot of powder we develop is metallurgically evaluated for grain size and distribution. Additionally, we develop an approval sample that is verified to be free of porosity, voids and the absence of eta phase.


Grain Size

The grain size of the powder has a direct impact on the physical properties of the carbide Hardness, Toughness and Strength (TRS). We control and monitor the grain size using both coercivity and metallurgical evaluation.

Coercivity: This measurement is highly dependent on grain size as the surface area between the WC grains and cobalt impact this (smaller grains = more surface area = higher coercivity measurements)

Magnetic Saturation: This test determines the magnetic material in a sample, which is highly dependent on the cobalt and carbon content in the carbide and all grades. Carbon content directly impacts what phases will form during cooling after sinter, and these phases impact the content of magnetic material.

These evaluations are used for blend approval, graded powder approval, extrusion mix testing and final product test pieces, and all grades have an upper and lower limit of coercivity and magnetic saturation.



Density is sensitive to cobalt content in carbide (when no other phases are present), as well as being sensitive to the presence of porosity. All grades have an upper and lower limit for density.

Density is tested for blend approval, graded powder approval and randomly for final product test pieces.



Hardness is directly related to grain size and cobalt content.  At H.B. Carbide, we test the hardness of our grades using Rockwell A. All grades have an upper and lower hardness limit and hardness is tested for graded powder approval.

Ethics and the Environment

Commitment to Responsibility

H.B. Carbide operates in a manner that is environmentally, ethically and socially responsible. And, we develop supplier relationships with businesses that have like-minded values, social compliance and corporate sustainability adoption.


We are highly invested in environmental global sustainability. We use state-of-the art equipment and processes that enable us to recapture and recycle 80% of the carbide powder being used in our facility. All recaptured material is thoroughly tested in our metallurgical lab to ensure its purity for re-use. This enables us to significantly reduce our carbon footprint.

We are compliant with the following regulations:

  • RoHS
  • Conflict Minerals Report
  • Environmental Policies
  • Full Material Disclosure

Standards & Requirements

We have built a culture where we ensure high standards of performance, economy, effectiveness, efficiency, quality and satisfaction. This includes compliance to all procedures or non-disclosures required by our customers.

Social Compliance

Ethical work practices are core to H.B. Carbide’s belief system. We ensure the health and safety, as well as the rights, of our employees and the community.

Our Code of Ethics ensures we operate with integrity in all the following areas:

  • Child Labor
  • Discrimination
  • Safety/Health/Workplace
  • Work Hours/Wages/Benefits
  • Diversity (Veteran, Woman, Minority Owned, etc.)
  • Confidential Information and Developments Agreements
  • Corporate Quality Policy
  • Employment Policies
  • Gifts/Gratuities
  • ITAR

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